Insect proof sliding sash window



Feb. 5 9

- Y 1,482,426 H. c. L. us INSECT PROOF SLIDING SASH WINDOW Filed NW. 17,1920 3 Sheets-Sheet 54;, z I. W2

Feb. 5 1924.

- H. C. L. AUS

INSECT PROOF SLIDING SASH WINDOW Filed Nov. 17 1920 3 Sheets-Sheet 3FIG, 2.

'Feb. 5, 1924.

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INSECT FROOFLSLIDING SASH WINDOW 1920 3 Sheets-Sheet 3 Filed Nov. 17

Patented Feb. 5, 1924.

UNITED STATES PATENT OFFICE.

HERMAN CHRISTIAN LOUIS AUS, or HAMILTON, NEWCASTLE, NEW SOUTH WALES,AUSTRALIA.

INSECTPROOF SLIDING-SASH WINDOW.

Application filed November 17, 1920. Serial No. 424,755.

T 0 all whomit may con-06m Be it known that I, HERMAN CHRISTIAN LOUISAUs, a subject of the King of Great Britain and Ireland, residing at 23Emerald Street, Hamilton, Newcastle, in the State of New South Wales,lommonwealth of Australia, have invented certain new and usefulImprovements in Insectproof Sliding-Sash \Vindows, of which thefollowing is a specification.

This invention relates to windows having inner and outer sashes slidingvertically in the frames, and the object of the invention is to effectcertain improvements in such windows whereby they may be rendered proofagainst ingress of flying insects at the same timeproviding for readyaccess to the saslrhanging and other gear for adjustment or renewalthereof.

According to this invention the frame of the window has in addition tothe usual side sash-weight boxes, a. horizontal box at both the top andbottom, said sash weight boxes and said upper box having hinged closureson the inside of the window so that access may be had to the interior,and said boxes may conveniently be constituted by the architraves orportions thereof.

In each of said horizontal boxes is a pivotal roller disposedtransversely of the window; and on each roller is secured one edge of awire screen which is wound upon the roller.

These screens are passed through slots formed respectively in the silland in the lintel of the sash-compartment of the frame,

- and are terminally fitted with transverse angle irons from whichproject lugs adapted to engage in sockets sunk in the upper rail of theouter sash and in the lower rail of the inner sash, said sockets eachcarrying a spring-held detent which engages the lug,

and is releasable by means of a key or the like. The lugs and catchesare so made that they automatically engage when forcibly pressedtogether.

It will thus be seen that when either sash is opened its attached screenis unwound from its roller and extended completely over the opening.Rewinding of the screen when the sash is closed is effected by means ofthe sash cords which are wound about the respective ends of therespective rollers and through guide pulleys, sash weights being hung onthe said cords.

To more clearly describe my invention I will now refer to theaccompanying drawings in which Fig. 1 is a perspective view of a windowaccording to this invention, both sashes being partly open.

Fig. 2 is an elevation from the inside, with the sash-weight boxes androller boxes open so as to show the internal gear in each.

Fig. 3 is a sectional elevation through the sashes, and

Fig. 4 a similar view through a sashweight box in which the cords areindicated diagrammatically.

Fig. 5 is a detail of a sash guide pulley.

Fig. 6 is a detail showing the means of attaching a screen to a sash.

Fig. 7 is a sectional fragmentary front view showing a catch member onthe sash engaging the screen catch member, and

Fig. 8 a sectional side view of the same.

The inner and outer sashes 10 and 11 re spectively are mounted to slidein the frame in the usual way, said frame having sash weight boxes 12,12, and horizontal boxes 13 and 14: at the top and bottom respectively.

In each horizontal box is a roller 15 pivoted axially on brackets 16,16, and each roller has at its respective ends right and left handhelical grooves as clearly shown in Fig. 2. On each roller is wound ascreen 17 of wire mesh passed through slots 18 in the members 19 19'dividing each roller box respectively from the sash compartment of theframe (see Fig. 4), the lower one of said members constituting the sill.

The screens which are of sufiicient width to span the width of the sashcompartment of the frame, are each terminally fitted with a transverseangle iron 20 on which are catch members 21, 21, designed to engage withcomplementary spring catch members fitted on the top and bottom railsrespectively of the sashes, the engagement of said catches releasablysecuring the ends of the screens to their respective sashes.

Each catch member fitted on the sashes comprises a detent 22 (see Figs.6 to 8) having a pivot pin 23 pivoted in a box or housing 24 let intothe sash rail, said detent being held in normal position by opposingsprings 25, 25, against which the detent may be deflected by rotation ofpin 23 by means of a key or the like applied to the squared end 26 ofsaid pin 23 projecting from the housing 2% The catch members are soconstructed that they automatically engage when the sashes are broughtinto contact with the angle irons on the respective screens. At the sametime the catches being readily released, the sashes may be moved in theusual way as and when it is desired to clean the glass.

The sashes are hung on sash cords and to facilitate the attachmentthereto and removal therefrom of the cords without taking the sashesfrom the frame, each usual groove is extended the full length of thesash stile and slightly returned under the lower sash rail where the endof the cord is secured by a nail or screw 29. Referring to the innersash, the cords 27, 27 leading from the pulleys 28, 28 are passedthrough the beforementioned. grooves and tern'iinally secured at 29, 29.Each cord 27 supports in a bight a sash weight or tensioning means 30and then reeves over a pulley 31, thence through a guide pulley 32mounted in bracket 33 (Fig. 5) affixed on. the hinged cover 34 of theweight box, and passing through a hole 35 in the sill 19 is terminallywound upon and secured to the helically grooved end of the screen roller15.

The outer sash is supported by cords 36, 36 attached to the sash in thesame manner as described in regard to the inner sash, each cord 36supporting in a bight a sash weight 37, reeving through a guide pulley38 similar to guide pulley 32 but mounted on the back of the weight box,and passing through a hole 39 in the upper frame member 19 is terminallywound upon and secured to the helically grooied end of the upper screenroller 15.

It will be seen that the balance weights exert a pull in oppositedirections on each sash and its respective screen, thus keeping thelatter taut in all positions of the sash. To maintain the sash in theopen position l. provide one ora pair of eccentrically operatmg pawlssuch as 40 pivoted on the frame stops and designed to bear against thesash stiles but manually releasable as required.

It is to be noted that the sash cords are so Wound upon the respectiverollers that the opening of a sash results in rotation of the hingedcover therefor, a drum having a flexible screen normally rolled thereon,means for attaching one end of the screen to said sash, a sash cordhaving one end attached to the sash and the other attached to said drumto rotate the same, a pair of pulleys in said frame, said cord having abight' portion hanging between said pulleys, means for tensioning saidcord carried by said portion and slidably related thereto and a thirdpulley mounted on said cover, said cord passing "from the firstmentioned pulleys through the last mentioned pulley to the drum.

2. A window structure comprising a frame and a sash vertically slidab letherein, a weight box in said frame, and a vertically hinged covertherefor, a drum having a flexible screen normally rolled thereon, a barat the free end of said screen, said bar and said sash havingautomatically operating means to attach said bar to said sash when thelatter is moved into contact with said bar, and said attaching meansincluding manually operable means to enable said sash to be disconnectedfrom said bar, a sash cord having one end attached to the sash and theother attached to said drum to rotate the same, a pair of pulleys insaid frame, said cord having a bight portion hanging between saidpulleys, means for te-nsioning said cord carried by said portion andslidably related thereto, and a third pulley mounted on said cover box,said cord passing from the first mentioned pulleys through the lastmentioned pulley to the drum.

Signed at Newcastle, N. S. I. this fitteenth day of October A. l). 1920.

HERMAN CHRISTIAN LOUIS 'AUS.

